Methanol → HCID 20363198, compound

HRID 1729645Notes

Reaction equation

HRID 1729645 reaction equation
[S:1]([C:5]1[C:6]([O:8][C:9](=[O:11])[CH:10]=1)=[O:7])([OH:4])(=[O:3])=[O:2].[CH3:12][O-:13].[Na+:14].C[OH:16]>>[CH3:12][O:13][CH:10]([CH:5]([S:1]([OH:4])(=[O:3])=[O:2])[C:6]([O-:16])=[O:7])[C:9]([O-:8])=[O:11].[Na+:14].[Na+:14].[Na+:14]

Participants

4

Reactant 3

HCID 887Methanol2×HCID 10942334Sodium MethoxideHCID 124798802,5-Dioxo-2,5-dihydrofuran-3-sulfonic acid

Product 1

HCID 20363198HCID 20363198, compound

Conditions

Temperature
80 °C

Procedure

Sulfomaleic anhydride, 3.9 gm, was dissolved in 25 ml of methanol and refluxed for 5 hours. Then, 24 gm of 25% sodium methoxide in methanol was added and the solution was reluxed for 2 hours. The methanol was then evaporated and the residue was dissolved in 100 ml of water and heated for 1 hour at 80° C. The solution was then decolorized with 5 gm of charcoal, filtered and evaporated. The crude residue of trisodium α-methoxy-β-sulfosuccinate was purified by trituration with acetic acid and then filtered, washed with acetone and dried.

Workup

  1. temperaturerefluxed for 5 hours
  2. customThe methanol was then evaporated
  3. dissolutionthe residue was dissolved in 100 ml of water
  4. filtrationfiltered
  5. customevaporated
  6. customThe crude residue of trisodium α-methoxy-β-sulfosuccinate was purified by trituration with acetic acid
  7. filtrationfiltered
  8. washwashed with acetone
  9. customdried

Sources & evidence

ORD record
ord-5e051a7a5843457c91e7c2d5ef0e04e8
Source dataset
uspto-grants-1976_11
Patent number
US03989700

Reaction notes

Loading…